Run: 2026-09-23-01M36V932NMDAVHHP41FMMVEQH

Run Details

Duration:
24.7s
Cost:
$0.010434
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Detective Harlan arrived at the old manor just after midnight and found the heavy front door standing wide open again. Cold rain slicked the stone steps as he carefully stepped inside and smelled iron beneath the fading scent of roses. A single candle burned low in the library where Lord Pembroke lay still beside an overturned glass of dark wine. His eyes were open, his cravat was torn, and a thin silver letter opener rested against his pale cold throat. Harlan knelt without touching anything and noticed fresh muddy footprints leading from the French windows toward the silent dark hallway. Somewhere upstairs a floorboard creaked once, then the whole house returned to a deep stillness that felt carefully arranged tonight.
created_at"2026-09-23T09:59:16.828Z" 9/23/2026, 9:59:16 AM
model"x-ai/grok-4.7-20260916"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency609
moderation_latency(null)
generation_time24701
tokens_prompt46
tokens_completion410
native_tokens_prompt1277
native_tokens_completion2036
native_tokens_completion_images(null)
native_tokens_reasoning1899
native_tokens_cached1152
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
service_tier"default"
usage0.0104336
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790157556-cDSRt9pm4mnl0vnTBKah"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790157556-2wzWMRhTpiqgp5FiglcE"
upstream_id"354c0410-b0a8-9a19-b250-83df8574125a"
provider_responses
0
endpoint_id"c942f37a-87e1-4fa8-83d0-8c67fda4fb4a"
id"354c0410-b0a8-9a19-b250-83df8574125a"
is_byokfalse
latency174
model_permaslug"x-ai/grok-4.7-20260916"
provider_name"xAI"
status200
total_cost0.0104336
cache_discount0.0013824
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
020
120
220
320
420
520